characteristic：

     Industrial pure aluminum has the general characteristics of aluminum, low density, good electrical and thermal conductivity, good corrosion resistance, and good plastic processing performance. It can be processed into plates, strips, foils, and extruded products. It can be used for gas welding, argon arc welding, spot welding.

     Industrial pure aluminum cannot be strengthened by heat treatment and can be strengthened by cold deformation. The only form of heat treatment is annealing. The starting temperature of recrystallization is related to the impurity content and the degree of deformation, generally around 200°C. The annealed sheet has σb=80-100MPa, σ0.2=30-50MPa, ζ=35%-40%, HB=25-30. After 60%～80% cold deformation, although the chaos can be increased to 150～180MPa, the ζ value drops to 1%～1.5%. Increasing the content of iron and silicon impurities can improve strength, but reduce plasticity, conductivity and corrosion resistance. The annealing softening characteristics and cold work hardening characteristics of 1200 (L5) industrial pure aluminum plates are shown in the figure. It can be seen from the figure that the mechanical properties of different cold hardening states can be obtained by adjusting the annealing temperature after cold deformation or controlling the amount of cold deformation after annealing. In order to improve the formability, the former method is better.

application：

     Often used in daily necessities, lighting appliances, reflectors, decorations, chemical industry containers, heat sinks, signs, electronics, lamps, nameplates, electrical appliances, stamping parts and other products. In some occasions that require high corrosion resistance and formability, but not high requirements for strength, chemical equipment is its typical use.

chemical composition:

Mg：0.05；

Zn：0.05；

Mn：0.05；

Ti：0.03；

V：0.05；

Fe：0.40；

Mechanical properties:

Tensile strength σb (MPa)：60～100

Elongation rate δ/（%）：≥23

Elongation rate 50mm/（%）：≥25